Granted Patent
Utility
US 6,583,239 · App. 10/121,619
Process for producing a polymer of an &agr;-olefin and lubricant
Inventors:
Yutaka Minami, Tatsuya Egawa
Patented Case
View Patent ↗
Granted: Jun 24, 2003
Filed: Apr 15, 2002
Inventors
Yutaka Minami
Tatsuya Egawa
Assignees (at issue)
Idemitsu Petrochemical Co., Ltd.
IDEMITSU KOSAN CO., LTD.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.